kicad/pcb_calculator/transline/c_microstrip.h

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/*
* c_microstrip.h - coupled microstrip class definition
*
* Copyright (C) 2002 Claudio Girardi <in3otd@qsl.net>
* Copyright (C) 2005 Stefan Jahn <stefan@lkcc.org>
* Modifications for Kicad: Jean-Pierre Charras
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this package; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*/
#ifndef _C_MICROSTRIP_H_
#define _C_MICROSTRIP_H_
class C_MICROSTRIP : public TRANSLINE
{
public: C_MICROSTRIP();
~C_MICROSTRIP();
private:
double h; /* height of substrate */
double ht; /* height to the top of box */
double t; /* thickness of top metal */
double rough; /* Roughness of top metal */
double w; /* width of lines */
double w_t_e; /* even-mode thickness-corrected line width */
double w_t_o; /* odd-mode thickness-corrected line width */
double l; /* length of lines */
double s; /* spacing of lines */
double Z0_e_0; /* static even-mode impedance */
double Z0_o_0; /* static odd-mode impedance */
double Z0e; /* even-mode impedance */
double Z0o; /* odd-mode impedance */
double c_e; /* even-mode capacitance */
double c_o; /* odd-mode capacitance */
double ang_l_e; /* even-mode electrical length in angle */
double ang_l_o; /* odd-mode electrical length in angle */
double er_eff_e; /* even-mode effective dielectric constant */
double er_eff_o; /* odd-mode effective dielectric constant */
double er_eff_e_0; /* static even-mode effective dielectric constant */
double er_eff_o_0; /* static odd-mode effective dielectric constant */
double er_eff; /* FIXME: dummy */
double w_eff; /* Effective width of line */
double atten_dielectric_e; /* even-mode dielectric losses (dB) */
double atten_cond_e; /* even-mode conductors losses (dB) */
double atten_dielectric_o; /* odd-mode dielectric losses (dB) */
double atten_cond_o; /* odd-mode conductors losses (dB) */
public:
void analyze();
void synthesize();
private:
double delta_u_thickness_single( double, double );
void delta_u_thickness();
void compute_single_line();
double filling_factor_even( double, double, double );
double filling_factor_odd( double, double, double );
double delta_q_cover_even( double );
double delta_q_cover_odd( double );
void er_eff_static();
double delta_Z0_even_cover( double, double, double );
double delta_Z0_odd_cover( double, double, double );
void Z0_even_odd();
void er_eff_freq();
void conductor_losses();
void dielectric_losses();
void attenuation();
void line_angle();
void syn_err_fun( double*, double*, double, double, double, double, double );
void synth_width();
void Z0_dispersion();
void calc();
void get_c_microstrip_sub();
void get_c_microstrip_comp();
void get_c_microstrip_elec();
void get_c_microstrip_phys();
void show_results();
void syn_fun( double*, double*, double, double, double, double );
private:
MICROSTRIP* aux_ms;
};
#endif /* _C_MICROSTRIP_H_ */